One-Time Password Authentication via User ID Embedding

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Solution Overview

Problem

Existing user authentication systems require a separate step for inputting a user ID, which can be cumbersome and lacks user-friendliness, especially when compared to the matrix authentication scheme that presents a presentation pattern to the user.

Innovation Solution

A user authentication system that uses a one-time password deriving rule applied to pattern elements at specific positions within a presentation pattern as the user's password, embedding the user ID at a predetermined position within the one-time password for authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate user ID input step is required before authentication, then user identification can be performed, but the authentication process becomes cumbersome and lacks user-friendliness

Engineering Contradiction:

Improveuser identificationVSAvoidauthentication process

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent combines user ID input and authentication into a single step by embedding the user ID within the one-time password character string. The user inputs only the one-time password derived from the presentation pattern, and the system automatically extracts the user ID from embedded positions within that password, eliminating the need for separate user ID and password input fields.

Inventive Principle:

Principle #5Merging (Combining)

2Productivity

If the user ID is embedded within the one-time password, then both user identification and authentication can be performed in a single step, but the password structure becomes more complex

Engineering Contradiction:

Improveauthentication efficiencyVSAvoidpassword structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The one-time password character string is segmented into multiple portions, with specific positions designated for embedding user ID information and other positions for authentication data. The system defines predetermined embedding positions within the password structure where user ID characters are placed, allowing automatic extraction and identification without requiring complex nested structures.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP3855325B1User authentication system, user authentication server, and user authentication method

Publication Date: 2025.03.05 CSE CO LTD

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AI summary

A system which performs both identification and authentication of a user ID at the same time with only one step of inputting a one-time password without the need of step of inputting a user ID is provided. A one-time password deriving rule for generating a one-time password by being applied to pattern elements at specific positions in a case where a plurality of pattern elements arranged in a predetermined pattern are presented to a user who is to be authenticated as a presentation pattern is set as a password of the user, and the user is authenticated on the basis of a character string for authentication in which a user ID is embedded at a predetermined embedding position within the one-time password. In this event, a correct character string for authentication for the presented presentation pattern is generated as a verification code for all user IDs, and in a case where a verification code which matches a character string for authentication input from the user exists, user authentication of the user ID corresponding to the verification code is made successful.